7314721 has 4 divisors (see below), whose sum is σ = 7320132. Its totient is φ = 7309312.

The previous prime is 7314719. The next prime is 7314731. The reversal of 7314721 is 1274137.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5934096 + 1380625 = 2436^2 + 1175^2 .

It is a cyclic number.

It is not a de Polignac number, because 7314721 - 2¹ = 7314719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7314731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281 + ... + 4033.

It is an arithmetic number, because the mean of its divisors is an integer number (1830033).

Almost surely, 2^7314721 is an apocalyptic number.

It is an amenable number.

7314721 is a deficient number, since it is larger than the sum of its proper divisors (5411).

7314721 is a wasteful number, since it uses less digits than its factorization.

7314721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410.

The product of its digits is 1176, while the sum is 25.

The square root of 7314721 is about 2704.5740884657. The cubic root of 7314721 is about 194.1180508697.

Adding to 7314721 its reverse (1274137), we get a palindrome (8588858).

The spelling of 7314721 in words is "seven million, three hundred fourteen thousand, seven hundred twenty-one".